Residual life determination system and residual life determination method

Abstract

A residual life determination system includes: a first estimated residual life recognition unit configured to recognize a first estimated residual life of the target component according to a cumulative fatigue degree of the target component based on the load measurement information; a second estimated residual life recognition unit configured to recognize a second estimated residual life of the target component according to a degradation degree of the physical property value of the target component based on the physical property value measurement information; and a residual life determination unit configured to determine the residual life of the target component based on the first estimated residual life in a first period before the second estimated residual life becomes longer than the first estimated residual life.

What is claimed is: 
     
         1 . A residual life determination system which determines a residual life of a target component provided in a moving body, the residual life determination system comprising:
 a load measurement information acquisition unit configured to acquire load measurement information indicating a measurement result of loads applied to the target component when the moving body is used;   a first estimated residual life recognition unit configured to recognize a first estimated residual life of the target component according to a cumulative fatigue degree of the target component based on the load measurement information;   a physical property value measurement information acquisition unit configured to acquire physical property value measurement information indicating a measurement result of a physical property value of the target component;   a second estimated residual life recognition unit configured to recognize a second estimated residual life of the target component according to a degradation degree of the physical property value of the target component based on the physical property value measurement information; and   a residual life determination unit configured to determine the residual life of the target component based on the first estimated residual life in a first period before the second estimated residual life becomes longer than the first estimated residual life.   
     
     
         2 . The residual life determination system according to  claim 1 ,
 wherein the residual life determination unit determines the residual life of the target component based on the second estimated residual life in a second period after the second estimated residual life becomes longer than the first estimated residual life.   
     
     
         3 . The residual life determination system according to  claim 2 ,
 wherein the load measurement information acquisition unit acquires the load measurement information by receiving the load measurement information transmitted at a first timing from the moving body,   the physical property value measurement information acquisition unit acquires the physical property value measurement information by receiving the physical property value measurement information transmitted at a second timing from a measuring device which measures the physical property value at the time of maintenance of the moving body, and   the residual life determination unit determines the residual life of the target component based on the second estimated residual life recognized by the second estimated residual life recognition unit at the previous second timing and the first estimated residual life recognized by the first estimated residual life recognition unit at every first timing, in a period of time from the previous second timing to the next second timing in the second period.   
     
     
         4 . The residual life determination system according to  claim 3 ,
 wherein the residual life determination unit determines the residual life of the target component by correcting the first estimated residual life recognized by the first estimated residual life recognition unit at every first timing by the second estimated residual life recognized by the second estimated residual life recognition unit at the previous second timing, in the period of time from the previous second timing to the next second timing in the second period.   
     
     
         5 . The residual life determination system according to  claim 1 ,
 wherein the moving body is provided with a dummy test piece for measuring the physical property value of the target component, and   the physical property value measurement information acquisition unit acquires the physical property value measurement information indicating the measurement result of the physical property value by the dummy test piece.   
     
     
         6 . A residual life determination method executed by a computer in order to determine a residual life of a target component provided in a moving body, the residual life determination method comprising:
 a load measurement information acquisition step of acquiring load measurement information indicating a measurement result of loads applied to the target component when the moving body is used;   a first estimated residual life recognition step of recognizing a first estimated residual life of the target component according to a cumulative fatigue degree of the target component based on the load measurement information;   a physical property value measurement information acquisition step of acquiring physical property value measurement information indicating a measurement result of a physical property value of the target component;   a second estimated residual life recognition step of recognizing a second estimated residual life of the target component according to a degradation degree of the physical property value of the target component based on the physical property value measurement information; and   a residual life determination step of determining the residual life of the target component based on the first estimated residual life in a first period before the second estimated residual life becomes longer than the first estimated residual life.